Tire Ruler245/75R16 dimensions
| Overall diameter (height) | 30.47″ · 774 mm |
| Section width | 9.65″ · 245 mm |
| Sidewall height | 7.23″ · 184 mm |
| Wheel diameter | 16″ |
| Rim width (rule of thumb) | 7–8.5″ |
| Circumference | 95.7″ |
| Revolutions per mile | 662 |
| In inches (flotation style) | 30.5 × 9.6R16 |
How it’s calculated: the sidewall is 75% of the 245 mm width = 183.8 mm (7.23″). Add two sidewalls to the 16″ wheel: 16 + 2 × 7.23 = 30.47″.
Bigger tires than 245/75R16 on 16″ wheels
| Size | Height | Taller by | 60 mph reads |
|---|---|---|---|
| 265/75R16 | 31.6″ | +1.18″ (+3.9%) | 62.3 mph |
| 235/85R16 | 31.7″ | +1.26″ (+4.1%) | 62.5 mph |
“60 mph reads” is your real speed when a speedometer set up for 245/75R16 shows 60. Above about 3% taller, most trucks need a leveling kit or lift, and the speedometer should be recalibrated.
Sizes equivalent to 245/75R16
Within 1.5% of the same height on a 16″ wheel. Usually interchangeable for the speedometer; check width, load index and clearance.
| Size | Height | Width | Difference |
|---|---|---|---|
| 215/85R16 | 30.4″ | 8.5″ | −0.3% |
| 265/70R16 | 30.6″ | 10.4″ | +0.5% |
| 255/70R16 | 30.1″ | 10.0″ | −1.4% |
Same height on a different wheel size
Changing wheel size (plus or minus sizing) while keeping the overall height keeps your speedometer right:
- 245/70R17: 30.5″ tall on a 17″ wheel (+0.1%)
- 265/65R17: 30.6″ tall on a 17″ wheel (+0.3%)
- 255/65R17: 30.1″ tall on a 17″ wheel (−1.4%)
- 265/60R18: 30.5″ tall on an 18″ wheel (+0.2%)
- 235/65R18: 30.0″ tall on an 18″ wheel (−1.4%)
- 245/65R18: 30.5″ tall on an 18″ wheel (+0.2%)
- 255/55R19: 30.0″ tall on a 19″ wheel (−1.4%)
- 265/50R20: 30.4″ tall on a 20″ wheel (−0.1%)
- 255/50R20: 30.0″ tall on a 20″ wheel (−1.4%)
- 275/50R20: 30.8″ tall on a 20″ wheel (+1.2%)
- 265/45R21: 30.4″ tall on a 21″ wheel (−0.3%)
- 275/45R21: 30.7″ tall on a 21″ wheel (+0.9%)
- 265/40R22: 30.3″ tall on a 22″ wheel (−0.4%)
Popular 245/75R16 comparisons
Frequently asked questions
Is 245/75R16 a 30 inch tire?
Not quite. 245/75R16 is 30.47 inches tall, between a 30 and a 31 inch tire.
What size is 245/75R16 in inches?
245/75R16 is 30.5 inches tall (overall diameter), 9.6 inches wide, with a 7.2 inch sidewall, and fits a 16 inch wheel.
What tire size is equivalent to 245/75R16?
Sizes within 1.5% of the same diameter on a 16" wheel: 215/85R16 (30.4"), 265/70R16 (30.6"), 255/70R16 (30.1"). Check load index and width before swapping.
What rim width fits 245/75R16?
As a rule of thumb, about 7–8.5 inches. The tire maker's spec sheet lists the approved range for each model.
How many revolutions per mile does 245/75R16 make?
About 662 revolutions per mile in theory (circumference 95.7 in). Real tires turn slightly more because they flatten under load.